40666263542 has 8 divisors (see below), whose sum is σ = 61055515776. Its totient is φ = 20314424952.

The previous prime is 40666263529. The next prime is 40666263551. The reversal of 40666263542 is 24536266604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40666263493 and 40666263502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9350693 + ... + 9355040.

It is an arithmetic number, because the mean of its divisors is an integer number (7631939472).

Almost surely, 2^40666263542 is an apocalyptic number.

40666263542 is a deficient number, since it is larger than the sum of its proper divisors (20389252234).

40666263542 is a wasteful number, since it uses less digits than its factorization.

40666263542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18706822.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 40666263542 in words is "forty billion, six hundred sixty-six million, two hundred sixty-three thousand, five hundred forty-two".